Write the definition of each word.

1. nuclear waste

radioactive waste material, for example from the use or reprocessing of nuclear fuel.

2. crust

In geology, the crust is the outermost solid shell of a rocky planet

3. mantle

A mantle is a layer inside a planetary body bounded below by a core and above by a crust.

4. core

Earth's inner core is the innermost geologic layer of the planet Earth. It is primarily a solid ball with a radius of about 1,220 km, which is about 20% of Earth's radius

Explanation:

Nuclear Waste :- Nuclear waste is the material left over in the reactor. This waste is radioactive and needs to be stored safely away from humans because it is dangerous and toxic to living things.

The Crust:- the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite. It is usually distinguished from the underlying mantle by its chemical makeup; however, in the case of icy satellites, it may be distinguished based on its phase.

Mantle:- A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density

Inner and outer core:- outer core is the third layer of the Earth. Earth's inner core is the innermost geologic layer of the planet Earth.

Lithosphere:- lithosphere is the rigid, outermost shell of a terrestrial-type planet or natural satellite

Geological Time:- geological time, the extensive interval of time occupied by the geologic history of Earth.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

80cm/s.

24cm/s.

53.3cm/s.